CN108797405A - A kind of buffer structure of the anti-dropstone of Bridge-wire fusing time - Google Patents
A kind of buffer structure of the anti-dropstone of Bridge-wire fusing time Download PDFInfo
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- CN108797405A CN108797405A CN201810679587.1A CN201810679587A CN108797405A CN 108797405 A CN108797405 A CN 108797405A CN 201810679587 A CN201810679587 A CN 201810679587A CN 108797405 A CN108797405 A CN 108797405A
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- 230000033001 locomotion Effects 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 10
- 238000009825 accumulation Methods 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims description 3
- 239000010881 fly ash Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 239000004575 stone Substances 0.000 description 27
- 239000011435 rock Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005067 remediation Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
- E01F7/04—Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries
- E01F7/045—Devices specially adapted for protecting against falling rocks, e.g. galleries, nets, rock traps
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
A kind of buffer structure of the anti-dropstone of Bridge-wire fusing time, including three-level open cut tunnel, the top surface of second level open cut tunnel is equipped at least four shafts being mutually parallel, shaft is each parallel to second level open cut tunnel top surface, the rear and front end of shaft is fixedly mounted on the top surface of second level open cut tunnel by bearing and holder respectively, several sprocket wheels being mutually parallel are fixedly mounted in the periphery of each shaft, spacing in shaft between each adjacent two sprocket wheel is equal, several chains are equipped with above the open cut tunnel of the second level, the quantity of chain is a quarter of sprocket wheel quantity, it is connected by a chain between four sprocket wheels of same row, sprocket wheel is engaged with corresponding chain simultaneously respectively, the periphery of chain is respectively fixedly connected with one end of several driving levers, driving lever is uniformly distributed on corresponding chain, the first bevel gear is fixedly mounted in the rear and front end of the shaft of both sides respectively.The bridge tunnel junction that the present invention is suitable for the roads Qiao Xiawu uses, and power needed for the present invention relies on natural wind, makes full use of the natural resources, is more energy-saving and environmentally friendly.
Description
Technical field
The invention belongs to Bridge and Tunnel Engineering technical field field, specifically a kind of anti-dropstone of Bridge-wire fusing time delays
Rush structure.
Background technology
When bridge and tunnel, which have, to influence each other, the link road between corresponding bridge endpoint, tunnel portal and bridge tunnel
Section is referred to as bridge tunnel coupling part, and referred to as bridge tunnel connects.In mountain terrain, due to bridge endpoint and Tunnel gate-to-gate distance compared with
When close, influencing each other between the two is must take into consideration in terms of design and construction.Since during construction and operation, having can not resist
The natural cause refused influences, and has the disturbance of vehicle traveling during operation, although the rock mass of tunnel upper is by reinforcing
Reason, but the generation of falling rocks phenomenon is still inevitably had, the safety and stability of cut-and-cover tunnel is seriously affected, while being also vehicle
Traveling greatly interference and risk factor.Such as the anti-dropstone of a kind of Bridge-wire fusing time described in publication number CN104746446A
Buffer structure " open cut tunnel is set as three-level on open cut tunnel and bridge at tunnel portal ..., and top surface is laid with concrete precast block ", but its second
Grade open cut tunnel be on bridge, and hole top be equipped with falling object diffusion accumulation area, as falling rocks is gradually accumulated, can cause second level open cut tunnel by
Power is uneven, is easily deformed, and the possibility occurred so as to cause safety accident is larger, this just needs manually to clear up falling rocks,
But labor intensity is big, and required labour is more, and labor cost is excessively high.
Invention content
The present invention provides a kind of buffer structure of the anti-dropstone of Bridge-wire fusing time, to solve defect in the prior art.
The present invention is achieved by the following technical programs：
The top surface of a kind of buffer structure of the anti-dropstone of Bridge-wire fusing time, including three-level open cut tunnel, second level open cut tunnel is equipped at least four phases
Mutually parallel shaft, shaft are fixed by bearing and holder respectively each parallel to second level open cut tunnel top surface, the rear and front end of shaft
Mounted on the top surface of second level open cut tunnel, the periphery of each shaft is fixedly mounted several sprocket wheels being mutually parallel, per adjacent in shaft
Spacing between two sprocket wheels is equal, and several chains are equipped with above the open cut tunnel of the second level, and the quantity of chain is four points of sprocket wheel quantity
One of, it is connected by a chain between four sprocket wheels of same row, sprocket wheel is engaged with corresponding chain simultaneously respectively, chain
The periphery of item is respectively fixedly connected with one end of several driving levers, and driving lever is uniformly distributed on corresponding chain, before the shaft of both sides
The first bevel gear is fixedly mounted in both ends respectively afterwards, and the top surface quadrangle of the second open cut tunnel passes through fixed frame and bearing installation transmission respectively
Fan is fixedly mounted in one end of axis, transmission shaft respectively, and the second bevel gear, second level open cut tunnel is fixedly mounted in the periphery of transmission shaft respectively
Top surface quadrangle casing is fixedly mounted by fixed frame respectively, the center line of casing is mutually parallel and is each perpendicular to second level open cut tunnel
Top surface is each passed through a montant in casing, and the periphery of montant connects the inner wall of corresponding casing by bearing respectively, montant
Upper and lower ends are fixedly mounted third bevel gear respectively, the first bevel gear and the second bevel gear respectively simultaneously with corresponding third umbrella tooth
Several cams are fixedly mounted in wheel engagement, the periphery of two shafts in inside respectively, and the cam in each shaft is more than sprocket wheel thereon
One, between each adjacent two cam be corresponding sprocket wheel in the shaft of inside.
A kind of buffer structure of the anti-dropstone of Bridge-wire fusing time as described above, the three-level open cut tunnel includes bright at tunnel portal
It is slow to increase setting foamed material between set arch and first order open cut tunnel newly using original open cut tunnel as first order open cut tunnel for open cut tunnel on hole and bridge
Rush layer；Second level open cut tunnel is on bridge, and hole top is equipped with falling object and spreads accumulation area；Third level open cut tunnel is connected with second level open cut tunnel,
Vent window is set on the stalk of third level open cut tunnel；Outlet portal is equipped between first order open cut tunnel and second level open cut tunnel, the second level is bright
It is equipped with expansion joint between hole and the agent structure of first order open cut tunnel, is set between third level open cut tunnel and the agent structure of second level open cut tunnel
There is deformation joint；Third level open cut tunnel substrate is connected with abutment foundation at tunnel portal, and third level open cut tunnel hole is open cut tunnel on bridge
Hole；Open cut tunnel crown portion mats formation to be followed successively by foamed material buffer layer, newly establishes carrying set arch, waterproof layer, flyash from outside to inside
It fills and is laid with concrete precast block with clay water barrier, top surface；It is protected by reinforcement abutment wall third level open cut tunnel periphery.
A kind of buffer structure of the anti-dropstone of Bridge-wire fusing time as described above, the top surface side of the second level open cut tunnel is fixed
Connect the lower end of several supporting rods, the upper end of supporting rod is respectively fixedly connected with the side of the same baffle, and baffle is towards the first order
Open cut tunnel, supporting rod have an angle α between baffle respectively, α=45-60 °.
A kind of buffer structure of the anti-dropstone of Bridge-wire fusing time as described above, the other side upper and lower part point of the baffle
Several through-holes are not opened up, pass through a motion bar in each through-hole, the periphery of motion bar connects with the inner wall of corresponding through-hole respectively
Cooperation is touched, and motion bar can be slided along corresponding through-hole level respectively, one end of motion bar is respectively fixedly connected with same delay
The side of punching, the side of buffer board are fixedly connected with one end of several springs, and spring is corresponded with motion bar, spring it is another
End is respectively fixedly connected with the other side of baffle, and motion bar is passed through out of corresponding spring respectively.
The other side of a kind of buffer structure of the anti-dropstone of Bridge-wire fusing time as described above, the buffer board is fixedly mounted one
Layer soft rubber cushion.
A kind of buffer structure of the anti-dropstone of Bridge-wire fusing time as described above, the driving lever are all made of 15F steels and obtain.
It is an advantage of the invention that：The present invention be suitable for the roads Qiao Xiawu bridge tunnel junction use, the present invention needed for power according to
It by natural wind, makes full use of the natural resources, is more energy-saving and environmentally friendly.The present invention drives fan rotation, fan to turn by natural wind
Dynamic to drive transmission shaft rotation, transmission shaft can drive corresponding second bevel-gear rotating respectively, due to the second bevel gear and third
Bevel gear engages, so as to drive third bevel-gear rotating, third bevel gear to be fixedly connected with montant, you can montant is driven to turn
Dynamic, the third bevel gear of montant lower end is engaged with the first bevel gear, so as to drive the first bevel-gear rotating, the first bevel gear
Shaft can be driven to rotate, shaft drives corresponding sprocket wheel rotation, sprocket wheel that chain rotation, driving lever is driven to be fixedly mounted on chain
On, chain can drive driving lever to move synchronously therewith, and chain can drive the sprocket wheel rotation of inside, i.e., all sprocket wheels to synchronize
Rotation, all shafts rotate synchronously, and the stone that second level open cut tunnel top surface can be scattered by driving lever is allocated to cam, the periphery of cam
Respectively with the top surface clearance fit of second level open cut tunnel, the periphery of cam can with stone close contacting fit, to pulverize stone.
The present invention can pulverize stone by cam, and the scree after pulverizing is in second level open cut tunnel top surface, with second level open cut tunnel top surface
The other end of the increase of rubble, driving lever can extend into rubble, with the movement of driving lever, can rubble be uniformly layered on second
Grade open cut tunnel top surface, avoids stone that accumulation is concentrated to cause second level open cut tunnel discontinuity, becomes to avoid result in second level open cut tunnel
Shape, these rubbles can work as a buffer the stone slid, and can reduce stone and contact the sound generated with open cut tunnel,
When bridge floor or impaired tunnel road surface, it can gather materials on the spot, these rubbles are filled up to road surface and are damaged in hole, damage is then cheated into top surface
It shuts, consumptive material can be reduced, reduce road surface rehabilitation cost, improve remediation efficiency；When the rubble of second level open cut tunnel top surface is full
When overflowing, rubble slides from the front and rear sides of second level open cut tunnel to bridge, will not fall on bridge, can be effectively protected cut-and-cover tunnel
Safety, reduce the damage fallen to open cut tunnel of rachill, avoid rubble from impacting vehicular traffic, reduce safety accident
Incidence；At least two cams roll stone, can avoid omitting stone；Casing can ensure that stablizing for montant is transported
Row ensures that the present invention has enough transmission accuracies；The present invention no longer needs the stone that manual cleaning is fallen, it is only necessary to tour personnel
Inspect periodically whether parts smooth can operate, labor intensity, which is beaten, to be reduced, and labor cost puts into low, day-to-day operation
Without supplying the energy, use cost is low, and structure uses machine driving, parts to be easy to be made and be hardly damaged, and service life is long.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments for those of ordinary skill in the art without having to pay creative labor, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of the present invention；Fig. 2 is the enlarged drawing of the A direction views of Fig. 1；Fig. 3 is I partial enlargement of Fig. 1
Figure；Fig. 4 is II partial enlarged view of Fig. 1.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
A kind of buffer structure of the anti-dropstone of Bridge-wire fusing time, as shown, including three-level open cut tunnel, the top surface of second level open cut tunnel is set
There are at least four shafts 1 being mutually parallel, shaft 1 to pass through respectively each parallel to second level open cut tunnel top surface, the rear and front end of shaft 1
Bearing and holder are fixedly mounted on the top surface of second level open cut tunnel, and several chains being mutually parallel are fixedly mounted in the periphery of each shaft 1
Wheel 2, the spacing in shaft 1 between each adjacent two sprocket wheel 2 is equal, and several chains 3 are equipped with above the open cut tunnel of the second level, chain 3
Quantity is a quarter of 2 quantity of sprocket wheel, is connected by a chain 3 between four sprocket wheels 2 of same row, and sprocket wheel 2 divides
It is not engaged not simultaneously with corresponding chain 3, the periphery of chain 3 is respectively fixedly connected with one end of several driving levers 4, and driving lever 4 is uniformly distributed
In on corresponding chain 3, the first bevel gear 5, the top surface four of the second open cut tunnel is fixedly mounted in the rear and front end of the shaft 1 of both sides respectively
Transmission shaft 6 is installed in angle by fixed frame and bearing respectively, and transmission shaft 6 and the center line of shaft 1 are mutually perpendicular to, and the one of transmission shaft 6
End is fixedly mounted fan 7 respectively, and fan 7 deviates from massif, and the periphery of transmission shaft 6 is fixedly mounted the second bevel gear 8 respectively, and second
Bevel gear 8 is located at the inside of corresponding fan 7, and the top surface quadrangle of second level open cut tunnel is fixedly mounted by fixed frame respectively to be covered
The center line of pipe 9, casing 9 is mutually parallel and is each perpendicular to second level open cut tunnel top surface, a montant 10 is each passed through in casing 9,
The periphery of montant 10 connects the inner wall of corresponding casing 9 by bearing respectively, and the upper and lower ends of montant 10 are fixedly mounted respectively
Three bevel gears 11, the first bevel gear 5 and the second bevel gear 8 are engaged with corresponding third bevel gear 11 simultaneously respectively, inside two
Several cams 12 are fixedly mounted in the periphery of shaft 1 respectively, and the cam 12 in each shaft 1 is than more than 2 one, sprocket wheel thereon, inside
Shaft 1 on be corresponding sprocket wheel 2 between each adjacent two cam 12.The bridge tunnel junction that the present invention is suitable for the roads Qiao Xiawu makes
With power needed for the present invention relies on natural wind, makes full use of the natural resources, is more energy-saving and environmentally friendly.The present invention passes through natural wind
Fan 7 is driven to rotate, the rotation of fan 7 drives transmission shaft 6 to rotate, and transmission shaft 6 can drive 8 turns of corresponding second bevel gear respectively
It is dynamic, since the second bevel gear 8 is engaged with third bevel gear 11, so as to drive third bevel gear 11 to rotate, third bevel gear
11 are fixedly connected with montant 10, you can drive montant 10 to rotate, the third bevel gear 11 of 10 lower end of montant is nibbled with the first bevel gear 5
It closes, so as to drive the first bevel gear 5 to rotate, the first bevel gear 5 can drive shaft 1 to rotate, and shaft 1 drives corresponding chain
2 rotation of wheel, sprocket wheel 2 drive chain 3 to rotate, and driving lever 4 is fixedly mounted on chain 3, and chain 3 can drive driving lever 4 to synchronize therewith
Movement, and chain 3 can drive the sprocket wheel 2 of inside to rotate, i.e., all sprocket wheels 2 rotate synchronously, all shafts 1 synchronize and turn
Dynamic, the stone that second level open cut tunnel top surface can be scattered by driving lever 4 is allocated to cam 12, the periphery of cam 12 respectively with second level open cut tunnel
Top surface clearance fit, the periphery of cam 12 can with stone close contacting fit, to pulverize stone.The present invention passes through cam
12 can pulverize stone, and the scree after pulverizing is dialled in second level open cut tunnel top surface with the increase of second level open cut tunnel top surface rubble
The other end of bar 4 can extend into rubble, and with the movement of driving lever 4, rubble can be uniformly layered on to second level open cut tunnel top surface,
Avoid stone that accumulation is concentrated to cause second level open cut tunnel discontinuity, to avoid result in second level open cut tunnel deformation, these rubbles
The stone slid can be worked as a buffer, and stone can be reduced and contact the sound generated with open cut tunnel, when bridge floor or tunnel
It when road surface is damaged, can gather materials on the spot, these rubbles are filled up to road surface and are damaged in hole, then shut damage hole top surface,
Consumptive material can be reduced, road surface rehabilitation cost is reduced, improves remediation efficiency；When the rubble spill-over of second level open cut tunnel top surface, rubble
It slides to bridge, will not fall on bridge from the front and rear sides of second level open cut tunnel, the safety of cut-and-cover tunnel can be effectively protected, subtracted
The damage that few rachill falls to open cut tunnel, avoids rubble from impacting vehicular traffic, reduces the incidence of safety accident；Extremely
Few two cams 12 roll stone, can avoid omitting stone；Casing 9 can ensure the stable operation of montant 10, protect
The card present invention has enough transmission accuracies；The present invention no longer needs the stone that manual cleaning is fallen, it is only necessary to which tour personnel is regular
Check whether parts smooth can operate, labor intensity, which is beaten, to be reduced, and labor cost input is low, and day-to-day operation is not necessarily to
The energy is supplied, use cost is low, and structure uses machine driving, parts to be easy to be made and be hardly damaged, and service life is long.
Specifically, in order to enhance the security and stability of cut-and-cover tunnel, the three-level open cut tunnel described in the present embodiment includes tunnel
Open cut tunnel on open cut tunnel and bridge at hole is increased newly to be arranged between set arch and first order open cut tunnel and be steeped using original open cut tunnel as first order open cut tunnel
Foam material buffer layer；Second level open cut tunnel is on bridge, and hole top is equipped with falling object and spreads accumulation area；Third level open cut tunnel and the second level are bright
Hole is connected, and vent window is arranged on the stalk of third level open cut tunnel；Outlet portal is equipped between first order open cut tunnel and second level open cut tunnel, the
Expansion joint, the agent structure of third level open cut tunnel and second level open cut tunnel are equipped between two level open cut tunnel and the agent structure of first order open cut tunnel
Between be equipped with deformation joint；Third level open cut tunnel substrate is connected with abutment foundation at tunnel portal, and third level open cut tunnel hole is bridge
Upper open cut tunnel hole；Open cut tunnel crown portion mat formation be followed successively by from outside to inside foamed material buffer layer, newly establish carrying set arch, waterproof layer,
Flyash is filled is laid with concrete precast block with clay water barrier, top surface；Third level open cut tunnel periphery is protected by reinforcement abutment wall, and first
Grade open cut tunnel is located at immediately below the face of the hillside Dong Ding, and original open cut tunnel is restored by original state, does not make supporting member, in set arch and original open cut tunnel
Between be arranged 12CM thickness foamed material buffer layer.Second level open cut tunnel is 8M on bridge, is 0.80M falling objects in the design of hole top
Spread accumulation area；Third level open cut tunnel 16M is beam wind in bright and dark light variation at reduction tunnel portal and gully to the side of driving
To influence, the vent window of 2 × 0.6M, longitudinal pitch 2M are set in open cut tunnel stalk.The structure is in the tunnel of geological conditions weakness
At mouthful, it can be effectively protected the safety of cut-and-cover tunnel, reduce the damage that rachill falls to open cut tunnel.
Specifically, as shown in figure 3, the top surface side of the second level open cut tunnel described in the present embodiment is fixedly connected with several supporting rods
13 lower end, the upper end of supporting rod 13 are respectively fixedly connected with the side of the same baffle 14, and baffle 14 is propped up towards first order open cut tunnel
Strut 13 has an angle α between baffle 14 respectively, α=45-60 °.The structure can stop the stone slid from first order open cut tunnel,
Stone will not directly rush at sprocket wheel 2, in order to avoid sprocket wheel 2 and chain 3 are caused to damage.
Further, 14 long-time of baffle may be deformed by stone impact, or even collapse, above-mentioned in order to overcome
The other side upper and lower part of problem, the baffle 14 described in the present embodiment opens up several through-holes 15 respectively, is worn in each through-hole 15
A motion bar 16 is crossed, the periphery of motion bar 16 is engaged with the inner wall of corresponding through-hole 15 respectively, and motion bar 16 can
Respectively along the horizontal sliding of corresponding through-hole 15, one end of motion bar 16 is respectively fixedly connected with the side of the same buffer board 17, delays
The side of punching 17 is fixedly connected with one end of several springs 18, and spring 18 is corresponded with motion bar 16, the other end of spring 18
It is respectively fixedly connected with the other side of baffle 14, motion bar 16 is passed through out of corresponding spring 18 respectively.Impact is slow when stone slides
Punching 17 so that buffer board 17 is moved to baffle 14, and spring 18 is shunk at this time, and motion bar 16 is respectively to corresponding through-hole 15
Interior movement is eliminated the impact force of stone by the elastic force of spring 18, can play cushioning effect, structure is more reasonable, baffle 14
It is not damaged, structural stability can be improved, extend the service life of the structure.
Further, in order to reduce noise, one layer of the other side fixed installation of the buffer board 17 described in the present embodiment is soft
Rubber cushion.Noise when stone is collided with soft rubber cushion is smaller, and soft rubber cushion can play further cushioning effect.
Further, in order to avoid 4 stress of driving lever is damaged, the driving lever 4 described in the present embodiment is all made of 15F steels and obtains.
The structure disclosure satisfy that the requirement for hugging out stone, and its toughness, weldability are good, be easy to it with chain 3 by being welded to connect.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；
And these modifications or replacements, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (6)
1. a kind of buffer structure of the anti-dropstone of Bridge-wire fusing time, it is characterised in that：Including three-level open cut tunnel, the top surface of second level open cut tunnel is set
There are at least four shafts being mutually parallel（1）, shaft（1）Each parallel to second level open cut tunnel top surface, shaft（1）Rear and front end point
The top surface of second level open cut tunnel, each shaft are not fixedly mounted on by bearing and holder（1）Periphery be fixedly mounted it is several mutually
Parallel sprocket wheel（2）, shaft（1）Upper each adjacent two sprocket wheel（2）Between spacing it is equal, be equipped with above the open cut tunnel of the second level several
Chain（3）, chain（3）Quantity be sprocket wheel（2）The a quarter of quantity is located at four sprocket wheels of same row（2）Between pass through
One chain（3）Connection, sprocket wheel（2）Respectively simultaneously with corresponding chain（3）Engagement, chain（3）Periphery be respectively fixedly connected with
Several driving levers（4）One end, driving lever（4）It is uniformly distributed in corresponding chain（3）On, the shaft of both sides（1）Rear and front end point
The first bevel gear is not fixedly mounted（5）, transmission shaft is installed in the top surface quadrangle of the second open cut tunnel by fixed frame and bearing respectively（6）,
Transmission shaft（6）One end fan is fixedly mounted respectively（7）, transmission shaft（6）Periphery the second bevel gear is fixedly mounted respectively（8）,
Casing is fixedly mounted by fixed frame respectively in the top surface quadrangle of second level open cut tunnel（9）, casing（9）Center line be mutually parallel and
Perpendicular to second level open cut tunnel top surface, casing（9）Inside it is each passed through a montant（10）, montant（10）Periphery pass through bearing respectively
Connect corresponding casing（9）Inner wall, montant（10）Upper and lower ends third bevel gear is fixedly mounted respectively（11）, the first umbrella tooth
Wheel（5）With the second bevel gear（8）Respectively simultaneously with corresponding third bevel gear（11）Engagement, the shaft of inside two（1）Periphery
Several cams are fixedly mounted respectively（12）, each shaft（1）On cam（12）Than sprocket wheel thereon（2）More one, inside
Shaft（1）Upper each adjacent two cam（12）Between be corresponding sprocket wheel（2）.
2. a kind of buffer structure of the anti-dropstone of Bridge-wire fusing time according to claim 1, it is characterised in that：The three-level is bright
Hole includes that open cut tunnel increases set arch and first order open cut tunnel newly using original open cut tunnel as first order open cut tunnel on open cut tunnel and bridge at tunnel portal
Between be arranged foamed material buffer layer；Second level open cut tunnel is on bridge, and hole top is equipped with falling object and spreads accumulation area；Third level open cut tunnel
It is connected with second level open cut tunnel, vent window is set on the stalk of third level open cut tunnel；It is equipped between first order open cut tunnel and second level open cut tunnel
Portal is exported, expansion joint is equipped between second level open cut tunnel and the agent structure of first order open cut tunnel, third level open cut tunnel and the second level are bright
Deformation joint is equipped between the agent structure in hole；Third level open cut tunnel substrate is connected with abutment foundation at tunnel portal, and the third level is bright
Hole hole is open cut tunnel hole on bridge；Open cut tunnel crown portion mats formation to be followed successively by foamed material buffer layer, newly establishes carrying from outside to inside
Set arch, waterproof layer, flyash are filled is laid with concrete precast block with clay water barrier, top surface；Third level open cut tunnel periphery is by reinforcing
Abutment wall is protected.
3. a kind of buffer structure of the anti-dropstone of Bridge-wire fusing time according to claim 1, it is characterised in that：The second level
The top surface side of open cut tunnel is fixedly connected with several supporting rods（13）Lower end, supporting rod（13）Upper end be respectively fixedly connected with it is same
Baffle（14）Side, baffle（14）Towards first order open cut tunnel, supporting rod（13）Respectively with baffle（14）Between have angle α, α=4
5-60 °.
4. a kind of buffer structure of the anti-dropstone of Bridge-wire fusing time according to claim 3, it is characterised in that：The baffle
（14）Other side upper and lower part open up several through-holes respectively（15）, each through-hole（15）Inside pass through a motion bar（16）,
Motion bar（16）Periphery respectively with corresponding through-hole（15）Inner wall be engaged, and motion bar（16）It can be respectively along correspondence
Through-hole（15）Level sliding, motion bar（16）One end be respectively fixedly connected with the same buffer board（17）Side, buffer board
（17）Side be fixedly connected with several springs（18）One end, spring（18）With motion bar（16）It corresponds, spring（18）'s
The other end is respectively fixedly connected with baffle（14）The other side, motion bar（16）Respectively from corresponding spring（18）Inside pass through.
5. a kind of buffer structure of the anti-dropstone of Bridge-wire fusing time according to claim 4, it is characterised in that：The buffer board
（17）The other side be fixedly mounted one layer of soft rubber cushion.
6. a kind of buffer structure of the anti-dropstone of Bridge-wire fusing time according to claim 1, it is characterised in that：The driving lever
（4）15F steels are all made of to obtain.
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| CN201810679587.1A CN108797405B (en) | 2018-06-27 | 2018-06-27 | Bridge and tunnel are continuous and are prevented falling stone's buffer structure |
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| CN108797405B CN108797405B (en) | 2020-06-19 |
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| CN108797405B (en) | 2020-06-19 |
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